346 LINAGES. Linum. 



b. Stem angled : leaves mostly opposite below the first branch. 



L. striatum, Walt. Annual : stems often somewhat clustered, ascending, striate and 

 somewliat ridged even below : leaves yellowish-green, slightly viscid, elliptical-oblong, acute, 

 several of the lower opposite or in whoVls of 3 : flowering branches often forking, at first 

 strikingly racemose, at length spaced out along the stem : calyx shorter : otherwise like the 

 last. — Car. 118 ; Torr. & Gray, Fl. i. 205 ; Trelease, 1. c. 14. L. Virginianum, Reichenb. Ic. 

 Bot. Exot. ii. 35, t. 198. L. Virginianum, var. oppositifolium, Engelm. in Gray, PI. Wright. 

 1. 26. L. simplex, Wood, Class-Book, ed. of 1861, 276. — Range of the preceding, chiefly 

 in wetter places. Canadian specimens with erect firm bluish leaves, may perhaps be varie- 

 tally separable. 



= = False septa incomplete, ciliate. 



a. Leaves opposite : adventive from Europe. 



L. cathArticum, L. (Spec. i. 281.) A small glabrous annual with opposite obovate small 

 leaves, occasionally ciliate at base, slender nearly terete stem several times forked above, 

 few small flowers terminating the branches, and minute 10-valved capsules about 1 line 

 long, has been collected as a seaside introduction at Pictou, Nova Scotia, Burgess. (Adv. 

 from Eu.) 



b. Leaves chiefly alternate : Southwestern. 



L. Neo-Mexicanum, Greene. Annual or biennial (or perennial?): stems simple or 

 branched below, strict, angled above : leaves narrowly oblong, the upper acute, I -nerved or 

 with 2 faint accessory nerves at base, less than 8 lines long : flowers on erect pedicels, in 

 long virgate racemes : sepals lanceolate, obtuse to taper-pointed, sometimes 3-keeled, the 

 inner margins minutely glandular : petals about 3 lines long : capsule broadly ovoid, rather 

 acute, a line and a half long, about equalling the calyx, the false septa incomplete above. — 

 Bot. Gaz. vi. 183 ; Trelease, 1. c. — Arizona and New Mexico. (Northern Mex.) 



L. ICingii, Watson. Perennial, usually very glaucous : stems cespitose, subterete, ascend- 

 ing : leaves crowded and somewhat appressed, firm, oblong or spatulate, subacute, 1 -nerved, 

 4 or 5 lines long : flowers densely corymbose-panicled at the ends of the branches : sepals 

 small, broadly ovate, obtuse to taper-pointed, 3-nerved, the inner margins glandular-ciliate : 

 petals 3 to 5 lines long : capsule ovoid, acute, a line and a half long, somewhat exceeding 

 the calyx, the false septa incomplete nearly to the base. — Bot. King Exp. 49 ; Trelease, 1. c. 



— Uinta and Wasatch Mountains of Utah to Wyoming. 



Var. pinetorum, Jones. Compact and low : leaves elliptical, mostly obtuse, appressed 

 and imbricated : flowers racemosely disposed along the branches. — Proc. Calif. Acad. Sci. 

 V. 628. — Utah, Uinta Mountains, Hayden ; Tropic, Jones, 5306. 



++ ++ Sepals and bracts glandular-toothed : small globose stipular glands usually present : 

 stems angled throughout : petals somewhat hairy at base : styles separate, or united 

 below the middle : false septa of capsule incomplete, more or less ciliate. 



Li. Gr^ggii, Engelm. Perennial, glaucous : stems mostly closely cespitose, branched below 

 jind somewhat panicled above : lower leaves commonly opposite or in whorls of 3, elliptic- 

 lanceolate, acute, 1-nerved, entire, about 6 lines long, the upper small, remote, less serrulate 

 than usual in the group : flowers rather numerous and closely placed, almost sessile : sepals 

 lanceolate, acute, keeled and with a pair of faint lateral nerves : petals about 2 lines long : 

 styles distinct : capsule globose-ovoid, a line and a half long, mostly about equal to the calyx. 



— Engelm. in Gray, PI. Wright, i. 26. — Western Texas, Guadalupe Mountains, Havard, 5, 

 Chisos Mountains, Havard, 1. (Mex.) Perhaps scarcely distinct from L. Schiedeanum, 

 Cham. & Schlecht. 



L. rupestre, Engelm. Perennial : stems several, slender, with few elongated nearly naked 

 corymbose branches above : leaves linear, acute, I-nerved, the lower scarcely 6 lines long, 

 sometimes sparingly ciliate, the upper minute, glandular-serrulate : flowers mostly few and 

 remote : sepals ovate, very acute or almost bristle-pointed, keeled, with a pair of fainter lat- 

 eral nerves : petals 3 to 5 lines long : styles distinct nearly to the base : capsule globose- 

 ovoid, a line and a half long, about equal to the calyx. — Engelm. in Gray, PI. Lindh. pt. 2, 

 232 ; Trelease, 1. c. 15. L. Boottii, var. rupestre, Gray, PI. Lindh. pt. 2, 155. — Texas. (North- 

 ern Mex.) 



